int main()

{

long n,k;

scanf("%ld\n",&n);

long a[n];

for(long i= 0;i<n;i++)

scanf("%ld\n",&a[i]);

for(long i=0;i<n;i++)

{

k=0;

for(long j=3;j<a[i];j++)

if(j%3==0 || j%5==0)

k=k+j;

if(k>0)

printf("%ld\n",k);

else

printf("%ld\n",k);

}

```
return 0;
```

}